amlogic: g12a: Add support for the S905X2 (G12A) platform

Introduce the preliminary support for the Amlogic S905X2 (G12A) SoC.

This port is a minimal implementation of BL31 capable of booting
mainline U-Boot and Linux. Tested on a SEI510 board.

Signed-off-by: Carlo Caione <ccaione@baylibre.com>
Change-Id: Ife958f10e815a4530292c45446adb71239f3367f
diff --git a/plat/amlogic/g12a/g12a_def.h b/plat/amlogic/g12a/g12a_def.h
new file mode 100644
index 0000000..d032815
--- /dev/null
+++ b/plat/amlogic/g12a/g12a_def.h
@@ -0,0 +1,135 @@
+/*
+ * Copyright (c) 2019, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef G12A_DEF_H
+#define G12A_DEF_H
+
+#include <lib/utils_def.h>
+
+/*******************************************************************************
+ * System oscillator
+ ******************************************************************************/
+#define AML_OSC24M_CLK_IN_HZ			ULL(24000000) /* 24 MHz */
+
+/*******************************************************************************
+ * Memory regions
+ ******************************************************************************/
+#define AML_HDCP_RX_BASE			UL(0xFFE0D000)
+#define AML_HDCP_RX_SIZE			UL(0x00002000)
+
+#define AML_HDCP_TX_BASE			UL(0xFFE01000)
+#define AML_HDCP_TX_SIZE			UL(0x00001000)
+
+#define AML_NS_SHARE_MEM_BASE			UL(0x05000000)
+#define AML_NS_SHARE_MEM_SIZE			UL(0x00100000)
+
+#define AML_SEC_SHARE_MEM_BASE			UL(0x05200000)
+#define AML_SEC_SHARE_MEM_SIZE			UL(0x00100000)
+
+#define AML_GIC_DEVICE_BASE			UL(0xFFC00000)
+#define AML_GIC_DEVICE_SIZE			UL(0x00008000)
+
+#define AML_NSDRAM0_BASE			UL(0x01000000)
+#define AML_NSDRAM0_SIZE			UL(0x0F000000)
+
+#define BL31_BASE				UL(0x05100000)
+#define BL31_SIZE				UL(0x00100000)
+#define BL31_LIMIT				(BL31_BASE + BL31_SIZE)
+
+/* Shared memory used for SMC services */
+#define AML_SHARE_MEM_INPUT_BASE		UL(0x050FE000)
+#define AML_SHARE_MEM_OUTPUT_BASE		UL(0x050FF000)
+
+#define AML_SEC_DEVICE0_BASE			UL(0xFFD00000)
+#define AML_SEC_DEVICE0_SIZE			UL(0x00026000)
+
+#define AML_SEC_DEVICE1_BASE			UL(0xFF800000)
+#define AML_SEC_DEVICE1_SIZE			UL(0x0000A000)
+
+#define AML_TZRAM_BASE				UL(0xFFFA0000)
+#define AML_TZRAM_SIZE				UL(0x00048000)
+
+/* Mailboxes */
+#define AML_MHU_SECURE_SCP_TO_AP_PAYLOAD	UL(0xFFFE7800)
+#define AML_MHU_SECURE_AP_TO_SCP_PAYLOAD	UL(0xFFFE7A00)
+#define AML_PSCI_MAILBOX_BASE			UL(0xFFFE7F00)
+
+#define AML_SEC_DEVICE2_BASE			UL(0xFF620000)
+#define AML_SEC_DEVICE2_SIZE			UL(0x00028000)
+
+/*******************************************************************************
+ * GIC-400 and interrupt handling related constants
+ ******************************************************************************/
+#define AML_GICD_BASE				UL(0xFFC01000)
+#define AML_GICC_BASE				UL(0xFFC02000)
+
+#define IRQ_SEC_PHY_TIMER			29
+
+#define IRQ_SEC_SGI_0				8
+#define IRQ_SEC_SGI_1				9
+#define IRQ_SEC_SGI_2				10
+#define IRQ_SEC_SGI_3				11
+#define IRQ_SEC_SGI_4				12
+#define IRQ_SEC_SGI_5				13
+#define IRQ_SEC_SGI_6				14
+#define IRQ_SEC_SGI_7				15
+#define IRQ_SEC_SGI_8				16
+
+/*******************************************************************************
+ * UART definitions
+ ******************************************************************************/
+#define AML_UART0_AO_BASE			UL(0xFF803000)
+#define AML_UART0_AO_CLK_IN_HZ			AML_OSC24M_CLK_IN_HZ
+#define AML_UART_BAUDRATE			U(115200)
+
+/*******************************************************************************
+ * Memory-mapped I/O Registers
+ ******************************************************************************/
+#define AML_AO_TIMESTAMP_CNTL			UL(0xFF8000B4)
+
+#define AML_SYS_CPU_CFG7			UL(0xFF634664)
+
+#define AML_AO_RTI_STATUS_REG3			UL(0xFF80001C)
+#define AML_AO_RTI_SCP_STAT			UL(0xFF80023C)
+#define AML_AO_RTI_SCP_READY_OFF		U(0x14)
+#define AML_A0_RTI_SCP_READY_MASK		U(3)
+#define AML_AO_RTI_SCP_IS_READY(v)					\
+	((((v) >> AML_AO_RTI_SCP_READY_OFF) &				\
+	AML_A0_RTI_SCP_READY_MASK) == AML_A0_RTI_SCP_READY_MASK)
+
+#define AML_HIU_MAILBOX_SET_0			UL(0xFF63C404)
+#define AML_HIU_MAILBOX_STAT_0			UL(0xFF63C408)
+#define AML_HIU_MAILBOX_CLR_0			UL(0xFF63C40C)
+#define AML_HIU_MAILBOX_SET_3			UL(0xFF63C428)
+#define AML_HIU_MAILBOX_STAT_3			UL(0xFF63C42C)
+#define AML_HIU_MAILBOX_CLR_3			UL(0xFF63C430)
+
+#define AML_SHA_DMA_BASE			UL(0xFF63E000)
+#define AML_SHA_DMA_DESC			(AML_SHA_DMA_BASE + 0x08)
+#define AML_SHA_DMA_STATUS			(AML_SHA_DMA_BASE + 0x28)
+
+/*******************************************************************************
+ * System Monitor Call IDs and arguments
+ ******************************************************************************/
+#define AML_SM_GET_SHARE_MEM_INPUT_BASE		U(0x82000020)
+#define AML_SM_GET_SHARE_MEM_OUTPUT_BASE	U(0x82000021)
+
+#define AML_SM_EFUSE_READ			U(0x82000030)
+#define AML_SM_EFUSE_USER_MAX			U(0x82000033)
+
+#define AML_SM_JTAG_ON				U(0x82000040)
+#define AML_SM_JTAG_OFF				U(0x82000041)
+#define AML_SM_GET_CHIP_ID			U(0x82000044)
+
+#define AML_JTAG_STATE_ON			U(0)
+#define AML_JTAG_STATE_OFF			U(1)
+
+#define AML_JTAG_M3_AO				U(0)
+#define AML_JTAG_M3_EE				U(1)
+#define AML_JTAG_A53_AO				U(2)
+#define AML_JTAG_A53_EE				U(3)
+
+#endif /* G12A_DEF_H */